package com.situ.stmall.admin.service.impl;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.situ.stmall.admin.entity.Root;
import com.situ.stmall.admin.mapper.RootMapper;
import com.situ.stmall.admin.service.RootService;
import com.situ.stmall.admin.util.MD5Util;

@Service
public class RootServiceImpl implements RootService{

	@Autowired
	private RootMapper rootMapper;
	
	@Override
	public Root login(Root root) throws Exception {
		// 1.  账号密码格式是否正确
		if (root.getRootname()==null ||
			root.getRootname().length() < 3 ||
			root.getRootname().length() > 16) {
			throw new Exception("账号格式不对");
		}
		if (root.getPassword()==null ||
			root.getPassword().length() < 3 ||
			root.getPassword().length() > 16) {
			throw new Exception("密码格式不对");
		}
		
		// 2. 查询账号信息
		Root selectRoot = rootMapper.selectByRootName(root.getRootname());
		
		// 3. 判断账号是否存在
		if (selectRoot == null) {
			throw new Exception("账号不存在");
		}
		
		// 4. 判断密码是否正确
		if ( ! selectRoot.getPassword()
				.equals(MD5Util.getMD5(root.getPassword()))) {
			throw new Exception("密码错误");
		}
		
		// 5. 判断账号是否可用
		if (selectRoot.getStatus() != 0) {
			throw new Exception("账号被禁用");
		}
		
		// 6. 返回root
		return selectRoot;
	}

	@Override
	public Root getByRootName(String rootname) {
		return rootMapper.selectByRootName(rootname);
	}

}
